Missouri circuit courts are courts of original civil and criminal jurisdiction. That is, cases usually begin in the circuit court, which is where trials may occur. Within the circuit court, there are various divisions, such as associate circuit, small claims, municipal, family, probate, criminal, and juvenile.

Missouri's counties and the city of St. Louis are organized into 45 judicial circuits. There is a court in every county. The circuit court is typically in the county seat (or the city of St. Louis) and may be in additional locations in the county.

For court-specific information, click on the county in the map or select the county/city name from the full list below.